{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T16:17:55Z","timestamp":1772036275882,"version":"3.50.1"},"reference-count":33,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"5969","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Science"],"published-print":{"date-parts":[[2010,2,26]]},"abstract":"<jats:title>Supernova Remnant Observations<\/jats:title>\n          <jats:p>\n            The sources of the cosmic rays that bombard Earth have been mysterious, but more recent explanations invoke high-energy acceleration of protons by the remnants of stellar explosions. Using the Fermi Large Area Telescope,\n            <jats:bold>\n              Abdo\n              <jats:italic>et al.<\/jats:italic>\n            <\/jats:bold>\n            (p.\n            <jats:related-article xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"doi\" page=\"1103\" related-article-type=\"in-this-issue\" vol=\"327\" xlink:href=\"10.1126\/science.1182787\">1103<\/jats:related-article>\n            , published online 5 January) obtained an image of the supernova remnant W44, which shows associated gamma-ray emissions in the order of gigaelectronvolts, conforming with models indicating local proton and nuclei acceleration.\n          <\/jats:p>","DOI":"10.1126\/science.1182787","type":"journal-article","created":{"date-parts":[[2010,1,8]],"date-time":"2010-01-08T04:37:22Z","timestamp":1262925442000},"page":"1103-1106","source":"Crossref","is-referenced-by-count":219,"title":["Gamma-Ray Emission from the Shell of Supernova Remnant W44 Revealed by the Fermi LAT"],"prefix":"10.1126","volume":"327","author":[{"given":"A. A.","family":"Abdo","sequence":"first","affiliation":[{"name":"Space Science Division, Naval Research Laboratory, Washington, DC 20375, USA."}]},{"given":"M.","family":"Ackermann","sequence":"additional","affiliation":[{"name":"W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305, USA."}]},{"given":"M.","family":"Ajello","sequence":"additional","affiliation":[{"name":"W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305, USA."}]},{"given":"L.","family":"Baldini","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Pisa, I\u201356127 Pisa, Italy."}]},{"given":"J.","family":"Ballet","sequence":"additional","affiliation":[{"name":"Laboratoire Astrophysique Instrumentation Mod\u00e9lisation, Commissariat \u00e0 l\u2019\u00c9nergie Atomique (CEA)\u2013Institut de Recherche sur les Lois Fondamentales de l\u2019Univers (IRFU)\/CNRS\/Universit\u00e9 Paris Diderot, Service d'Astrophysique, CEA Saclay, 91191 Gif sur Yvette, France."}]},{"given":"G.","family":"Barbiellini","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I\u201334127 Trieste, Italy."},{"name":"Dipartimento di Fisica, Universit\u00e0 di Trieste, I\u201334127 Trieste, Italy."}]},{"given":"M. G.","family":"Baring","sequence":"additional","affiliation":[{"name":"Rice University, Department of Physics and Astronomy, MS\u2013108, Post Office Box 1892, Houston, TX 77251, USA."}]},{"given":"D.","family":"Bastieri","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I\u201335131 Padova, Italy."},{"name":"Dipartimento di Fisica \u201cG. Galilei,\u201d Universit\u00e0 di Padova, I\u201335131 Padova, Italy."}]},{"given":"B. M.","family":"Baughman","sequence":"additional","affiliation":[{"name":"Department of Physics, Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA."}]},{"given":"K.","family":"Bechtol","sequence":"additional","affiliation":[{"name":"W. W. 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